电子测量与仪器学报
電子測量與儀器學報
전자측량여의기학보
Journal of Electronic Measurement and Instrumentation
2015年
8期
1151-1156
,共6页
无线传感网络%物理层安全%压缩感知%分布式策略
無線傳感網絡%物理層安全%壓縮感知%分佈式策略
무선전감망락%물리층안전%압축감지%분포식책략
Wreless sensor networks( WSN)%physical layer security%compressed sensing%Distribated strategy
无线传感器网络( WSN)指的是由可以感知和检查外部世界的传感器组建而成的分布式无线网络。得益于硬件系统的飞速发展,无线传感网络广泛应用到了军事、智能交通、环境监控、医疗卫生等多个领域。考虑到无线传感器受限于能量,计算能力等诸多因素,其引发出来的无线传感网络通信安全问题成为了一大研究热点。本文旨在探讨如何应用压缩感知技术保证无线传感网络的安全通信,针对放大转发式压缩感知技术下的无线传感网络安全保密问题推导给出了可计算的保密容量门限值。最后分别讨论了不同数目下的活跃感知节点,中继节点以及窃听节点对无线传感网安全保密容量的影响。仿真结果进一步验证了所推导的保密容量结论。
無線傳感器網絡( WSN)指的是由可以感知和檢查外部世界的傳感器組建而成的分佈式無線網絡。得益于硬件繫統的飛速髮展,無線傳感網絡廣汎應用到瞭軍事、智能交通、環境鑑控、醫療衛生等多箇領域。攷慮到無線傳感器受限于能量,計算能力等諸多因素,其引髮齣來的無線傳感網絡通信安全問題成為瞭一大研究熱點。本文旨在探討如何應用壓縮感知技術保證無線傳感網絡的安全通信,針對放大轉髮式壓縮感知技術下的無線傳感網絡安全保密問題推導給齣瞭可計算的保密容量門限值。最後分彆討論瞭不同數目下的活躍感知節點,中繼節點以及竊聽節點對無線傳感網安全保密容量的影響。倣真結果進一步驗證瞭所推導的保密容量結論。
무선전감기망락( WSN)지적시유가이감지화검사외부세계적전감기조건이성적분포식무선망락。득익우경건계통적비속발전,무선전감망락엄범응용도료군사、지능교통、배경감공、의료위생등다개영역。고필도무선전감기수한우능량,계산능력등제다인소,기인발출래적무선전감망락통신안전문제성위료일대연구열점。본문지재탐토여하응용압축감지기술보증무선전감망락적안전통신,침대방대전발식압축감지기술하적무선전감망락안전보밀문제추도급출료가계산적보밀용량문한치。최후분별토론료불동수목하적활약감지절점,중계절점이급절은절점대무선전감망안전보밀용량적영향。방진결과진일보험증료소추도적보밀용량결론。
The wireless sensor networks ( WSN) refers to the distributed wireless networks for the information acqui-sition and processing from the physical world.As the highly development on the hardware system, the WSN has been widely applied into many areas, such as military, intelligent transpiration, environment monitor, and medical care.Due to the power and computation limitation of the wireless sensor , the security issue of WSN has become a prevalent concern in the wireless communication.This paper mainly discusses the physical security problem based on the amplify-and-forward ( AF) compressed sensing scheme.Moreover, this paper offers a deep insight to the se-crecy capacity of wireless sensor network and provides a calculable threshold of the security capacity.Furthermore, we also discuss the impact of the numbers of active sensor nodes, relay nodes and eavesdropper nodes to the secrecy capacity.Simulation results demonstrate the correctness of the derived secrecy capacity.